Braiding-machine.



F. ROSSKOTHEN.

BRAIDING MACHINE.

APPLlCATlON FILED FEB.16..}9|5.

Patented Mar. 19, 1918.

3 SHEETSSHEET I.

m FIG 1 F. ROSSKOTHEN.

BRAIDING MACHINE APPLICATION FILED FEB. 16. m5.

Patented Mar. 19, 1918.

3 SHEETS-SHEET 2. H J

F. ROSSKOTHEN.

BRAIDING MACHINE.

APPLICATION FILED FEB. 16. 1915 1,260,063, Patented Mar. 19, 1918.

3 SHEETS-SHEET 3.

FERDINAND ROSSKOTHEN, OF DRESDEN, GERMANY.

BRAIIJING-MACHINE.

Specification of Letters Patent.

ltatented Mar. 19, 1918.

Application filed February 16, 1915. Serial No. 8,614.

To all whom it may concern Be it known that T, FERDINAND Rossno'rrrnu, asubject of the King of Prussia, and resident of Dresden, Lidonienstrasse1, Kingdom or" Saxony, German Empire, have invented a new and usefulImprovement in Braiding-Machines, of which the following is aspecification.

The present invention refers to braiding threads, before they reach thebraidingpoint. For convenience of expression, the bobbins and threads ofthe first group will be called hereafter innerbobbins and inner threadsand the bobbins and threads of the second group outer bobbins and outerthreads.

here are different systems known for making it. possible to lead thethreads from the outer bobbins alternately above and below the innerbobbins without interrupting the positive driving of the'inner bobbinsround the braiding point. Also various methods are known for guiding theouter threads above and below the inner bobbins. Most of these threadguide motions are complicated and not suitable for high speeds and mostof these motions are only suitable for one pattern of braid or theyrequire rather complicated alterations viz. dismounting the machine,changing of cams, etc., when a change of the pattern is'required. V

The present invention refers to a circular braiding machine with animproved system of guiding the outer threads by simple means above andbelow the inner bobbins. This system of guiding the thread makes itpossible to change easily and quickly the pattern of braid and evenmakes it possible to alter the pattern of braid, when the machine isrunning. The new thread guiding arrangement is suitable for the highestspeed. This purpose is obtained in the following manner:

The inner bobbins are placed on carriers orshuttles, which arepointed'in the direction of movement or at both ends. The inner bobbincarriers are moved round the braiding point by any of the known systems,which allow unobstructed passage of the outer threads, below the innerbobbin carriers on their way to the braiding point. "heouter bobbins arecarried by a frame, which rotates in the opposite direction, but at'thesame speed as the inner bobbin carriers. The inner bobbin carriers areprovided with shields, which are pointed in the direction of movement orat both ends. The threads from the outer bobbins are slipping under orover the smooth rims of these shields. Such shields have been usedbefore in machines of this kind, but the arrangements, which have beenused up to now for guiding the outer threads according to necessityabove or below these shields were complicated, expensive in theirmanufacture and to a great extent not suitable for the application ofhigh speeds.

According to the present invention the leading or guiding of the outerthreads over and under the points of the shields is performed byapplying stationary, (non-revolving) guiding parts (plates, wires orswitches), at those places where the outer threads meet with the pointsof the shields of the inner bobbin carriers.

By altering the shape and position of thesev guide parts or switchesdifi'erent braiding patterns can be produced and the number ofdifi'erent braiding patterns can still be increased by using theseswitches in combination with bobbin carriers whose points are movableaccording to the-desired pattern by a curve out into the path on which.the inner bobbin carriers are sliding. By dividing the outer threadsinto groups, which are guided in paths of different heights, two braidscan be produced one over the other. In this case the threads of the onegroup may be guided by the stationary guide parts or switches and thethreads of the other group may be guided by the movable points of theinner bobbin carriers. By arranging the outer threads in groups, whichare guided in paths of different heights or elevations, in combinationwith stationary guides or switches, two or more braids, one over theother, can also be produced by using bobbin carriers, whose points arearranged in different heights. These braids are being braided. or intermeshed with each other by theinnerthreads. This system of guiding thethreads makes it possible to guide two or more outer threads througheach. of; the: slots, which are: arranged in the path of the innerbobbins for the purpose of allowing the outer threads to pass to thebraiding point.

The. improvedibraidingi machine is shownin Figures 1-10. Drawingsihig s.l.7 serve to explain diagrammatically the new'thread guidingdevice. 1Fig. 8. showsan. inner bobs bin carrier. with. adjustable. points. Fig.89 shows an. arrangementof inner. bobbin can riers with movable points.governedv by a.

curve; Fig, 9 show-s, the generalarrangement of. the. machine The righthandside ot. the drawing; shows; a vertical. section; of themachine,andthe; lefthand side an out? sideview. .liigl-Qshows-a perspective viewof. a. part. of. the machine, andthreadguid-ing 7 device...

In. the diagrammatical. drawings Figs;

-. into. contact with the polished. rims. ofthe shields... of the. innerbobbincarriers it, isv pushed: out oi the straight path. and itslipseither over or. undergthe; are. shaped; shieldsof; the inner, bobbin:carriersaccording; to its; path being arranged above,- ({Fig. 1 orbe"-low. (;Big; .2.); the, points. of. the inner bobbin carriers. 7

As indicated; in,- the; drawings; thethread, returns into. the-Originalv straight; path. in consequen'ceof: itsxtension after. it.is-,no morea deflected by theshields-.. If? the path. of; the.

- outerthreadsis arranged. over the points ch the; innerbobbin:carriers, the outer threadss1ip, -o.ve-n all inner. bobbin; carriersand.movein; a. line; composed; of. straight. and. arc. shapediparts,ascindicated in 'thelower par-t ofgF-igala lit the. path ofi'the'outerthread: is arranged;- bElDW.' the; points of, the inner. bobbin.carriers, theouter'threads. movebe. 1ow:all'innenbobbin carriers. and:move a in a pathindicatedby the-diagram iniFig. 25.

According to; the present invention; the. path; ot the outer threadsisar-ranged aboveor below the-13yoint's-ofthe-innen bobbin: car-- riers.and in some? of! the places,.v where; the: outer; threads meet with: thepoints; of; the inner; bobbin carrier-sq stationary guides. or. switchesareanranged, by which; the outer. threads. are: led) or guidedto that.side ofv the: inner bobbin. carriers, which is opposite to. theirordinary path. This is distinctly shown in the diagrammatical drawingsFigs. 3-6;

To; the. stationary rod; f" (which in reality is a circular ring), Fig.3, guide pieces or switches-=c are attached. When an outer thread a, ismoved in the direction (If-6Z Fig: 3", it" i's -defiect/erl in thedownward. di-

rection. on. those. spots, where it comes into contact with the guidepieces or switches 6 e e c and thereby it. is. guided below the.v innerbobbin. carriers. d d el -.03 The thread thereby moves in. a path, shownin the. bottom part of Fig. 3., alternately over one, and; under one.inner bobbincarrier.

when glaring these guide pieces a symmetricai shape or fornnthe outer'threads are. moved in a wave; shaped path alternately" ovenand under oneinner. bobbin; carrier. as indicatediit Fig. 4..

By using dirferent. forms. and arrangements of theguide pieces,difierent' patterns ot. braid can. be produced. In the arrange.-

mentishown. in Him. 5' the; outer threads are.

moved over 2 andrunder 2 andinthe arrangeinent shown in Fig. 6. over 1.andfunr der-B inner. bobbincarriers. 7 r

F or convenienceof. explanation ithas been: assumed up. to. now. that.the bobbin: carriers 6F and. the. switches e, are. both stationary and;that the outer threadsxmove in. thedirection. indicated by. the. arrows;but in. reality only the. guide'apieces or: switches are stationany,whereas theinner bobbin carriers move in the opposite direction to theouter threads. By thisimovement. oi theouter. threads and the. innerbobbin. carriers in; opposite directi'ons the number. of, meetings;between. an

outer. thread. and; the inner. bobbin. carriers.

isdoubled and; therefore. it: is. necessary for producing the-samekindotpattern ofbraid. to. double; also: the. number of'iguide pieces and;tereduce their length; toone half of. the:

have shieldswith raised] points, whereas the:

bobbin carriers 615654, (Z (lg. have, shields. with. lower. points,. forthepunpose. ofiproducing double: braids. .lnithis case; the outer.threads are led: to.- the: braiding. pointin; two

groups. Thethrleads a belonging tothe one group are moved in a thclosely bgve, the bobbin. carriers d c 5, with raised: poi11ts,.whereasthe threads belonging to the second group are moved in a path b-Z2 whichis arranged under the raised points of the inner. bobbin carriers withraised points, but which is higher or above the lower points of theinner bobbin carriers (Z (Z d d If the outer threads were not deflectedby the guides or switches e e all the threads (1. of the first groupwould slip over all inner bobbin carriers, whereas the threads Z1 of theother group would slip under the bobbin carriers 01,, (Z d d, and overthe bobbin carriers (Z 614, d (i with lower points. In this manner nobraiding action would be performed, but by the action of the guidepieces or switches e -e the outer threads are led in some of the meetingplaces under all the inner bobbin carriers, both under those with highand those with low points, but in those places where the outer threadsare not influenced or deflected by the guide parts or switches, theyreturn back to their original path a-a or Z)b respectively.

The threads a of the first group therefore perform a movement which isdifferent from the movement performed by the second group of outerthreads 2). In the eXample shown in Fig. 7 the threads a move over 2 andunder 2 inner bobbins, whereas the threads 6 of the other group areguided under 3 and over 1 inner bobbin carriers. It will be seen, thattherefore the inner threads form with the two groups of outer threadstwo different kinds of braid which are closely connected or intermeshedby the inner threads. In the finished braid the threads 6 of the lowergroup are not or very little visible, because they are covered by thethreads at of the other group with the inner threads. By arranging theinner bobbin carriers with raised and lowered points in a differentmanner and also by arranging the guide parts or switches in a differentway, different kinds of double braids can be produced. Fig. 8 shows abobbin carrier with adjustable points, which can be raised or lowered asrequired. Fig. 8 shows an arrangement, in which the guiding of the outerthreads a under or over the inner bobbin carriers is obtained byproviding the inner bobbin carriers with movable points and in which theposition of these points is controlled by a curved groove p, which iscut into the path G, in which the inner bobbin carriers are sliding. Theinner bobbin carriers d carry with the pivots g the parts 8, which arepointed in the direction of movement. On the other end of the parts 8,these parts carry by a pivot the tongue 1", which slides in the curvedgroove 27 of the sliding path G. When these movable points of the innerbobbin carriers meet with an outer thread a, this outer thread will passover and under this bobbin carrier, if the respective point of thisbobbin carrierhas been moved downward or upward.

By altering the form of the curve for moving the points of the bobbincarriers, different kinds of braid can be produced. The system ofguiding the threads by movable points of the inner bobbin carriers ischiefly applicable in such cases, where it is intended to produceseveral braids at the same time one over the other. In this case theouter threads are divided (similar to the arrangement shown in Fig. 7 intwo groups a and b, which are moved along the inner bobbin carriers intopaths arranged in different heights. The result is similar as explainedwith regard to Fig. 7 but the number of braiding patterns can beconsiderably increased by the simultaneous application of bobbincarriers with stationary and movable points.

In the examples shown in the drawings, it is always assumed, that theguiding parts or switches are arranged above the inner bobbin carriersand that the outer threads are led by the switches below the points ofthe bobbin carriers. The arrangement can also be reversed and theguiding parts or switches can also be arranged below the inner bobbincarriers. The first arrange mentis preferable, because the wholearrangement of the machine is thereby simplified. The guiding parts orswitches 6 can be made of metal sheets or wires and by exchanging theseguide parts Or switches the patternof braids can be altered in a veryconvenient manner.

The general arrangement of the machine is shown in Fig. 9 in which theright hand side shows a vertical section of the machine and the lefthand side a front view. The frame A which carries the outer bobbins Fand also the frame B, which drives-the inner bobbins J round thebraiding point C by means of swinging drivers K, or any other suitablemeans, are carried by a stationary hollow pillar. The frames A and B arerevolved by the driving shaft D and bevel wheels E E E E E Both framesare running at the same speed, but in opposite direction. The threads 0from the inner bobbins are running directly to the braiding point C,whereas the threads 0 from the outer bobbins F are first led to thethread guides 0 which are revolving with the frame A and from there overor under the inner bobbin carriers to the braiding point. The innerbobbin carriers cl are sliding with slides in an annular or ring shapedpath G, which is interrupted by slots L for the purpose of allowing thepassage of the outer threads a. The ring 7, which carries the guidingparts or switches e is fastened to the frame of the machine, closelyabove the annular path G.

In order to show distinctly the passage coplelrot thlspatent maybeotitalned'for five cents each, by addressing the the position of themore important parts-is shown: in a perspective View Fig. 10 in themo1nent, when the outer threads 0, meet the points-of the inner bobbincarriers; In this drawing: it can be distinctly seen, that the outerthreads are pushed or guided below the points of the inner bobbin''carriers in those places, where they come into contact with the guideparts or switches @,-,Whereas I inthose places, where the: outer threadsare not coming into contact with a switch or guiding-part, the outerthreads-are slipping? over the point of the respective innerbobbincarrier.

What I claim is:

1.- Ina braiding machine, the combina tion wlth twosets of bobbins forinner and;

outer threads revolving in oppositeadirec tlons round the braidingpolnt, of carriers supporting said bobb1ns,-the carriersof the innerthread bobbins being pointed in the direction of their movement andprovided with movable points, a cam for controlling the said movablepoints and arranged in the path on which the inner bobbin carriers aresliding, means for revolving the bobbin supporting carriers round thebraiding point, and stationary non revolving guide pieces arranged inthe meeting-places of the outer bobbin threads with the points ottheafore said inner bobbin" carriers for moving the outer bobbin threads tothe opposite side of thepoints-of the inner carrier points.

'2. In a braiding, machine, the combina tion with two sets of bobbinsfor inner and outer threads revolving in'opposite directions-roundthebraiding point, the bobbins nee'ogoee' of the outerthreadsbeingvdivi'dedinto two groups moving in paths of dlf erentheights; otcarriers supporting said bObb11 1S,:tl1e car means forrevolving-the bobbin supporting carriers round the" braiding point andstationary non revolving guide-pieces, the one group of the outerthreads being controlled" by the movable points of the inner carriers"and the'othergroup by the stationary non= revolving guide-pieces:

g 3. In a braiding machine, the comb in'a tion with two groupsof bobbinsfor lnner and outer threads revolving in oppositedirectlons round thebralding point, the'bobbins of the outer threads being divided intogroups, the threads of which are guided-in different heights, ofcarriers sup-portingsaid bobbins, the carr ers of the inner threadbobbins being polnted 111 the dlrectlon of their movement and arrangedin difi'erentheights, means for revolving the bobbin supporting carriersroundthe braiding point, and stationary non-revolving:gulde-piecesarranged for producing two or more braids one over another connected bythe inner threads.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two Witnesses, thlstwenty-first day of January,1915. V

FERDINAND ROS'SKOTH'EN.

lVitnesses CLARE SIMON, BERTOLD A. BRAUNL Commissioner; of Patents;

Washington, D. 0;

